We know they're not really related, but the reaction around FIX HQ when we learned that Lauren Graham is dating her onscreen brother Peter Krause was a resounding "eeeeew".

We know they're not really related, but the reaction around FIX HQ when we learned that Lauren Graham is dating her onscreen brother Peter Krause was a resounding "eeeeew".

The two star in Parenthood as fortysomething siblings Sarah and Peter Braverman.

"One of the things that's been so fun is that it's so easy," Graham said in an interview with Redbook magazine where she went public with the relationship. "It's a lot, to work with somebody and spend time with them, too."

She revealed that she and Krause have kept their relationship under wraps because they "like to be at home, cooking and not going out". "I've also been really protective of it," she said, "because it's important that you can buy us as brother and sister on the show."